class myThread1 implements Runnable{
    @Override
    public void run() {
        BinaryOperationBase binaryOperationBase = new BinaryOperationBase();
        if (!FileOperation.isExist("AddBase.txt")) {binaryOperationBase.getAddBase(100);}
    }
}
class myThread2 implements Runnable{
    @Override
    public void run() {
        BinaryOperationBase binaryOperationBase = new BinaryOperationBase();
        if (!FileOperation.isExist("SubBase.txt")) {binaryOperationBase.getSubBase(100);}
    }
}
